San Diego, CA -- (SBWIRE) -- 04/25/2012 -- An investigation for shareholders of Actuant Corporation (NYSE:ATU) possible securities laws violations was announced and NYSE:ATU stockholders should contact the Shareholders Foundation. Read the full press release at http://www.sbwire.com/press-releases/actuant-corporation-nyseatu-investor-alert-investigation-over-potential-excessive-executive-pay-138758.htm